if_ef.c revision 1.4
1 /* $NetBSD: if_ef.c,v 1.4 1998/04/15 01:45:44 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Rafal K. Boni. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/mbuf.h> 42 #include <sys/errno.h> 43 #include <sys/device.h> 44 #include <sys/protosw.h> 45 #include <sys/socket.h> 46 47 #include <net/if.h> 48 #include <net/if_dl.h> 49 #include <net/if_types.h> 50 #include <net/if_media.h> 51 #include <net/if_ether.h> 52 53 #include <vm/vm.h> 54 55 #include <machine/cpu.h> 56 #include <machine/bus.h> 57 #include <machine/intr.h> 58 59 #include <dev/isa/isareg.h> 60 #include <dev/isa/isavar.h> 61 62 #include <dev/ic/i82586reg.h> 63 #include <dev/ic/i82586var.h> 64 #include <dev/isa/if_efreg.h> 65 #include <dev/isa/elink.h> 66 67 #ifdef EF_DEBUG 68 #define DPRINTF(x) printf x 69 #else 70 #define DPRINTF(x) 71 #endif 72 73 struct ef_softc { 74 struct ie_softc sc_ie; 75 76 bus_space_tag_t sc_regt; /* space tag for registers */ 77 bus_space_handle_t sc_regh; /* space handle for registers */ 78 79 void* sc_ih; /* interrupt handle */ 80 81 u_int8_t card_rev; /* hardware revision */ 82 u_int8_t card_type; /* card model -- AUI/BNC or TP */ 83 }; 84 85 int ef_media[] = { 86 IFM_ETHER | IFM_10_5, 87 IFM_ETHER | IFM_10_2, 88 }; 89 #define NEF_MEDIA (sizeof(ef_media) / sizeof(ef_media[0])) 90 91 int eftp_media[] = { 92 IFM_ETHER | IFM_10_T, 93 }; 94 #define NEFTP_MEDIA (sizeof(eftp_media) / sizeof(eftp_media[0])) 95 96 /* Routines required by the MI i82586 driver API */ 97 static void ef_reset __P((struct ie_softc *, int)); 98 static void ef_hwinit __P((struct ie_softc *)); 99 static void ef_atten __P((struct ie_softc *)); 100 static int ef_intrhook __P((struct ie_softc *, int)); 101 102 static void ef_copyin __P((struct ie_softc *, void *, int, size_t)); 103 static void ef_copyout __P((struct ie_softc *, const void *, int, size_t)); 104 105 static u_int16_t ef_read_16 __P((struct ie_softc *, int)); 106 static void ef_write_16 __P((struct ie_softc *, int, u_int16_t)); 107 static void ef_write_24 __P((struct ie_softc *, int, int)); 108 109 static void ef_mediastatus __P((struct ie_softc *, struct ifmediareq *)); 110 111 /* Local routines */ 112 static int ef_port_check __P((bus_space_tag_t, bus_space_handle_t)); 113 114 #ifdef __BROKEN_INDIRECT_CONFIG 115 int ef_match __P((struct device *, void*, void *)); 116 #else 117 int ef_match __P((struct device *, struct cfdata *, void *)); 118 #endif 119 void ef_attach __P((struct device *, struct device *, void *)); 120 121 /* 122 * This keeps track of which ISAs have been through an ie probe sequence. 123 * A simple static variable isn't enough, since it's conceivable that 124 * a system might have more than one ISA bus. 125 * 126 * The "isa_bus" member is a pointer to the parent ISA bus device struct 127 * which will unique per ISA bus. 128 */ 129 130 #define MAXCARDS_PER_ISABUS 8 /* if you have more than 8, you lose */ 131 132 struct ef_isabus { 133 LIST_ENTRY(ef_isabus) isa_link; 134 struct device *isa_bus; 135 136 int bus_state; 137 138 struct card { 139 bus_addr_t iobase; 140 bus_addr_t maddr; 141 bus_size_t msize; 142 int irq; 143 int available; 144 } isa_cards[MAXCARDS_PER_ISABUS]; 145 }; 146 147 static LIST_HEAD(, ef_isabus) ef_isa_buses; 148 static int ef_isa_buses_inited; 149 150 static void 151 ef_card_add( 152 struct ef_isabus *bus, 153 bus_addr_t iobase, 154 bus_addr_t maddr, 155 bus_size_t msize, 156 int irq) 157 { 158 int idx; 159 160 DPRINTF(("Adding 3c507 at 0x%x, IRQ %d, Mem 0x%lx/%ld\n", 161 (u_int) iobase, irq, (u_long) maddr, msize)); 162 163 for (idx = 0; idx < MAXCARDS_PER_ISABUS; idx++) { 164 if (bus->isa_cards[idx].available == 0) { 165 bus->isa_cards[idx].iobase = iobase; 166 bus->isa_cards[idx].maddr = maddr; 167 bus->isa_cards[idx].msize = msize; 168 bus->isa_cards[idx].irq = irq; 169 bus->isa_cards[idx].available = 1; 170 break; 171 } 172 } 173 } 174 175 /* 176 * 3C507 support routines 177 */ 178 static void 179 ef_reset(sc, why) 180 struct ie_softc *sc; 181 int why; 182 { 183 struct ef_softc* esc = (struct ef_softc *) sc; 184 185 switch (why) { 186 case CHIP_PROBE: 187 /* reset to chip to see if it responds */ 188 bus_space_write_1(esc->sc_regt, esc->sc_regh, 189 EF_CTRL, EF_CTRL_RESET); 190 DELAY(100); 191 bus_space_write_1(esc->sc_regt, esc->sc_regh, 192 EF_CTRL, EF_CTRL_NORMAL); 193 DELAY(100); 194 break; 195 196 case CARD_RESET: 197 /* 198 * this takes around 10sec, and we can get 199 * by quite well w/out it... 200 */ 201 break; 202 } 203 } 204 205 static void 206 ef_atten(sc) 207 struct ie_softc *sc; 208 { 209 struct ef_softc* esc = (struct ef_softc *) sc; 210 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ATTN, 1); 211 } 212 213 static void 214 ef_hwinit(sc) 215 struct ie_softc *sc; 216 { 217 struct ef_softc* esc = (struct ef_softc *) sc; 218 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1); 219 } 220 221 static int 222 ef_intrhook(sc, where) 223 struct ie_softc *sc; 224 int where; 225 { 226 unsigned char cr; 227 struct ef_softc* esc = (struct ef_softc *) sc; 228 229 switch (where) { 230 case INTR_ENTER: 231 /* entering ISR: disable, ack card interrupts */ 232 cr = bus_space_read_1(esc->sc_regt, esc->sc_regh, EF_CTRL); 233 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_CTRL, 234 cr & ~EF_CTRL_IEN); 235 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1); 236 break; 237 238 case INTR_EXIT: 239 /* exiting ISR: re-enable card interrupts */ 240 cr = bus_space_read_1(esc->sc_regt, esc->sc_regh, EF_CTRL); 241 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_CTRL, 242 cr | EF_CTRL_IEN); 243 break; 244 245 case INTR_LOOP: 246 /* looping in ISR: ack new interrupts */ 247 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1); 248 break; 249 } 250 251 return 1; 252 } 253 254 static u_int16_t 255 ef_read_16 (sc, offset) 256 struct ie_softc *sc; 257 int offset; 258 { 259 bus_space_barrier(sc->bt, sc->bh, offset, 2, BUS_SPACE_BARRIER_READ); 260 return bus_space_read_2(sc->bt, sc->bh, offset); 261 } 262 263 static void 264 ef_copyin (sc, dst, offset, size) 265 struct ie_softc *sc; 266 void *dst; 267 int offset; 268 size_t size; 269 { 270 int dribble; 271 u_int8_t* bptr = dst; 272 273 bus_space_barrier(sc->bt, sc->bh, offset, size, 274 BUS_SPACE_BARRIER_READ); 275 276 if (offset % 2) { 277 *bptr = bus_space_read_1(sc->bt, sc->bh, offset); 278 offset++; bptr++; size--; 279 } 280 281 dribble = size % 2; 282 bus_space_read_region_2(sc->bt, sc->bh, offset, (u_int16_t *) bptr, 283 size >> 1); 284 285 if (dribble) { 286 bptr += size - 1; 287 offset += size - 1; 288 *bptr = bus_space_read_1(sc->bt, sc->bh, offset); 289 } 290 } 291 292 static void 293 ef_copyout (sc, src, offset, size) 294 struct ie_softc *sc; 295 const void *src; 296 int offset; 297 size_t size; 298 { 299 int dribble; 300 int osize = size; 301 int ooffset = offset; 302 const u_int8_t* bptr = src; 303 304 if (offset % 2) { 305 bus_space_write_1(sc->bt, sc->bh, offset, *bptr); 306 offset++; bptr++; size--; 307 } 308 309 dribble = size % 2; 310 bus_space_write_region_2(sc->bt, sc->bh, offset, (u_int16_t *)bptr, 311 size >> 1); 312 if (dribble) { 313 bptr += size - 1; 314 offset += size - 1; 315 bus_space_write_1(sc->bt, sc->bh, offset, *bptr); 316 } 317 318 bus_space_barrier(sc->bt, sc->bh, ooffset, osize, 319 BUS_SPACE_BARRIER_WRITE); 320 } 321 322 static void 323 ef_write_16 (sc, offset, value) 324 struct ie_softc *sc; 325 int offset; 326 u_int16_t value; 327 { 328 bus_space_write_2(sc->bt, sc->bh, offset, value); 329 bus_space_barrier(sc->bt, sc->bh, offset, 2, BUS_SPACE_BARRIER_WRITE); 330 } 331 332 static void 333 ef_write_24 (sc, offset, addr) 334 struct ie_softc *sc; 335 int offset, addr; 336 { 337 bus_space_write_4(sc->bt, sc->bh, offset, addr + 338 (u_long) sc->sc_maddr - (u_long) sc->sc_iobase); 339 bus_space_barrier(sc->bt, sc->bh, offset, 4, BUS_SPACE_BARRIER_WRITE); 340 } 341 342 static void 343 ef_mediastatus(sc, ifmr) 344 struct ie_softc *sc; 345 struct ifmediareq *ifmr; 346 { 347 struct ifmedia *ifm = &sc->sc_media; 348 349 /* 350 * The currently selected media is always the active media. 351 */ 352 ifmr->ifm_active = ifm->ifm_cur->ifm_media; 353 } 354 355 int 356 ef_match(parent, cf, aux) 357 struct device *parent; 358 #ifdef __BROKEN_INDIRECT_CONFIG 359 void *cf; 360 #else 361 struct cfdata *cf; 362 #endif 363 void *aux; 364 { 365 struct isa_attach_args * const ia = aux; 366 367 int idx; 368 struct ef_isabus *bus; 369 370 bus_space_handle_t ioh; 371 bus_space_tag_t iot = ia->ia_iot; 372 373 if (ef_isa_buses_inited == 0) { 374 LIST_INIT(&ef_isa_buses); 375 ef_isa_buses_inited = 1; 376 } 377 378 /* 379 * Probe this bus if we haven't done so already. 380 */ 381 for (bus = ef_isa_buses.lh_first; bus != NULL; 382 bus = bus->isa_link.le_next) { 383 if (bus->isa_bus == parent) 384 break; 385 } 386 387 if (bus == NULL) { 388 bus_addr_t iobase; 389 390 /* 391 * Mark this bus so we don't probe it again. 392 */ 393 bus = (struct ef_isabus *) 394 malloc(sizeof(struct ef_isabus), M_DEVBUF, M_NOWAIT); 395 if (bus == NULL) 396 panic("ef_isa_probe: can't allocate state storage for %s", 397 parent->dv_xname); 398 399 bus->bus_state = 0; /* nothing done yet */ 400 bus->isa_bus = parent; 401 402 LIST_INSERT_HEAD(&ef_isa_buses, bus, isa_link); 403 404 if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh)) { 405 DPRINTF(("3c507 probe: can't map Etherlink ID port\n")); 406 return 0; 407 } 408 409 /* 410 * Reset and put card in CONFIG state without 411 * changing address. 412 */ 413 elink_reset(iot, ioh, parent->dv_unit); 414 elink_idseq(iot, ioh, ELINK_507_POLY); 415 elink_idseq(iot, ioh, ELINK_507_POLY); 416 bus_space_write_1(iot, ioh, 0, 0xff); 417 418 /* Unmap the ID port */ 419 bus_space_unmap(iot, ioh, 1); 420 421 bus->bus_state++; /* cards now in CONFIG state */ 422 423 for (iobase = EF_IOBASE_LOW; iobase <= EF_IOBASE_HIGH; 424 iobase += EF_IOSIZE) { 425 /* 426 * Map the 507's port-space for the probe sequence. 427 */ 428 if (bus_space_map(iot, iobase, EF_IOSIZE, 429 0, &ioh) != 0) 430 continue; 431 432 /* Now look for the 3Com magic bytes */ 433 434 if (ef_port_check(iot, ioh)) { 435 int irq; 436 u_int8_t v; 437 bus_addr_t maddr; 438 bus_addr_t msize; 439 bus_space_handle_t memh; 440 441 irq = bus_space_read_1(iot, ioh, EF_IRQ) & 442 EF_IRQ_MASK; 443 444 v = bus_space_read_1(iot, ioh, EF_MADDR); 445 maddr = EF_MADDR_BASE + 446 ((v & EF_MADDR_MASK) << EF_MADDR_SHIFT); 447 msize = ((v & EF_MSIZE_MASK) + 1) * 448 EF_MSIZE_STEP; 449 450 if (bus_space_map(ia->ia_memt, maddr, 451 msize, 0, &memh) == 0) { 452 ef_card_add(bus, iobase, maddr, 453 msize, irq); 454 bus_space_unmap(ia->ia_memt, 455 memh, msize); 456 } 457 } 458 bus_space_unmap(iot, ioh, EF_IOSIZE); 459 } 460 } 461 462 for (idx = 0; idx < MAXCARDS_PER_ISABUS; idx++) { 463 if (bus->isa_cards[idx].available != 1) 464 continue; 465 466 if (ia->ia_iobase != IOBASEUNK && 467 ia->ia_iobase != bus->isa_cards[idx].iobase) 468 continue; 469 470 if (ia->ia_maddr != MADDRUNK && 471 ia->ia_maddr != bus->isa_cards[idx].maddr) 472 continue; 473 474 if (ia->ia_irq != IRQUNK && 475 ia->ia_irq != bus->isa_cards[idx].irq) 476 continue; 477 478 break; 479 } 480 481 if (idx == MAXCARDS_PER_ISABUS) 482 return (0); 483 484 bus->isa_cards[idx].available++; 485 ia->ia_iobase = bus->isa_cards[idx].iobase; 486 ia->ia_irq = bus->isa_cards[idx].irq; 487 ia->ia_iosize = EF_IOSIZE; 488 ia->ia_maddr = bus->isa_cards[idx].maddr; 489 ia->ia_msize = bus->isa_cards[idx].msize; 490 return (1); 491 } 492 493 void 494 ef_attach(parent, self, aux) 495 struct device *parent; 496 struct device *self; 497 void *aux; 498 { 499 struct ef_softc *esc = (void *)self; 500 struct ie_softc *sc = &esc->sc_ie; 501 struct isa_attach_args *ia = aux; 502 bus_space_tag_t iot = ia->ia_iot; 503 504 int i; 505 char version[20]; 506 struct ef_isabus *bus; 507 u_int8_t partno[EF_TYPE_LEN]; 508 bus_space_handle_t ioh, memh; 509 u_int8_t ethaddr[ETHER_ADDR_LEN]; 510 511 sc->hwinit = ef_hwinit; 512 sc->hwreset = ef_reset; 513 sc->chan_attn = ef_atten; 514 sc->intrhook = ef_intrhook; 515 516 sc->memcopyin = ef_copyin; 517 sc->memcopyout = ef_copyout; 518 sc->ie_bus_read16 = ef_read_16; 519 sc->ie_bus_write16 = ef_write_16; 520 sc->ie_bus_write24 = ef_write_24; 521 522 sc->sc_msize = 0; 523 524 /* 525 * NOP chains don't give any advantage on this card, in fact they 526 * seem to slow it down some. As the doctor says, "if it hurts, 527 * don't do it". 528 */ 529 sc->do_xmitnopchain = 0; 530 531 sc->sc_mediachange = NULL; 532 sc->sc_mediastatus = ef_mediastatus; 533 534 /* Find the cards parent bus */ 535 for (bus = ef_isa_buses.lh_first; bus != NULL; 536 bus = bus->isa_link.le_next) { 537 538 if (bus->isa_bus == parent) 539 break; 540 } 541 542 if (bus == NULL) 543 panic("%s: Can't find parent bus!", sc->sc_dev.dv_xname); 544 545 546 /* If the bus hasn't been transitioned to the RUN state, do so now */ 547 if (bus->bus_state == 1) { 548 if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh) != 0) { 549 DPRINTF(("\n%s: Can't map Elink ID port!\n", 550 sc->sc_dev.dv_xname)); 551 return; 552 } 553 554 bus_space_write_1(ia->ia_iot, ioh, 0, 0x00); 555 elink_idseq(ia->ia_iot, ioh, ELINK_507_POLY); 556 bus_space_write_1(ia->ia_iot, ioh, 0, 0x00); 557 bus_space_unmap(ia->ia_iot, ioh, 1); 558 559 bus->bus_state++; 560 } 561 562 /* Map i/o space. */ 563 if (bus_space_map(ia->ia_iot, ia->ia_iobase, 564 ia->ia_iosize, 0, &ioh) != 0) { 565 566 DPRINTF(("\n%s: can't map i/o space 0x%x-0x%x\n", 567 sc->sc_dev.dv_xname, ia->ia_iobase, 568 ia->ia_iobase + ia->ia_iosize - 1)); 569 return; 570 } 571 572 esc->sc_regt = ia->ia_iot; 573 esc->sc_regh = ioh; 574 575 if (bus_space_map(ia->ia_memt, ia->ia_maddr, 576 ia->ia_msize, 0, &memh) != 0) { 577 578 DPRINTF(("\n%s: can't map iomem space 0x%x-0x%x\n", 579 sc->sc_dev.dv_xname, ia->ia_maddr, 580 ia->ia_maddr + ia->ia_msize - 1)); 581 bus_space_unmap(ia->ia_iot, ioh, ia->ia_iosize); 582 return; 583 } 584 585 sc->bt = ia->ia_memt; 586 sc->bh = memh; 587 588 sc->sc_msize = ia->ia_msize; 589 sc->sc_maddr = (void *) memh; 590 sc->sc_iobase = sc->sc_maddr + sc->sc_msize - (1 << 24); 591 592 /* set up pointers to important on-card control structures */ 593 sc->iscp = 0; 594 sc->scb = IE_ISCP_SZ; 595 sc->scp = sc->sc_msize + IE_SCP_ADDR - (1 << 24); 596 597 sc->buf_area = sc->scb + IE_SCB_SZ; 598 sc->buf_area_sz = sc->sc_msize - IE_ISCP_SZ - IE_SCB_SZ - IE_SCP_SZ; 599 600 /* zero card memory */ 601 bus_space_set_region_1(sc->bt, sc->bh, 0, 0, sc->sc_msize); 602 603 /* set card to 16-bit bus mode */ 604 bus_space_write_1(sc->bt, sc->bh, IE_SCP_BUS_USE((u_long)sc->scp), 0); 605 606 /* set up pointers to key structures */ 607 ef_write_24(sc, IE_SCP_ISCP((u_long)sc->scp), (u_long) sc->iscp); 608 ef_write_16(sc, IE_ISCP_SCB((u_long)sc->iscp), (u_long) sc->scb); 609 ef_write_24(sc, IE_ISCP_BASE((u_long)sc->iscp), (u_long) sc->iscp); 610 611 /* flush setup of pointers, check if chip answers */ 612 bus_space_barrier(sc->bt, sc->bh, 0, sc->sc_msize, 613 BUS_SPACE_BARRIER_WRITE); 614 if (!i82586_proberam(sc)) { 615 DPRINTF(("\n%s: can't talk to i82586!\n", 616 sc->sc_dev.dv_xname)); 617 bus_space_unmap(ia->ia_iot, ioh, ia->ia_iosize); 618 bus_space_unmap(ia->ia_memt, memh, ia->ia_msize); 619 return; 620 } 621 622 /* set bank 2 for card part number and revision */ 623 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_CTRL, 624 EF_CTRL_NRST | EF_CTRL_BNK2); 625 626 /* card revision is encoded in BCD */ 627 i = bus_space_read_1(esc->sc_regt, esc->sc_regh, EF_REV); 628 esc->card_rev = 10 * (i / 16) + (i % 16); 629 630 for (i = 0; i < EF_TYPE_LEN; i++) 631 partno[i] = bus_space_read_1(esc->sc_regt, esc->sc_regh, 632 EF_TYPE + i); 633 634 /* use part number to guess if card is TP or AUI/BNC model */ 635 esc->card_type = EF_IS_TP(partno) ? EF_CARD_TP : EF_CARD_BNC; 636 637 /* set bank 0 for ethernet address */ 638 bus_space_write_1(esc->sc_regt, esc->sc_regh, 639 EF_CTRL, EF_CTRL_NORMAL); 640 641 for (i = 0; i < EF_ADDR_LEN; i++) 642 ethaddr[i] = bus_space_read_1(esc->sc_regt, esc->sc_regh, 643 EF_ADDR + i); 644 645 sprintf(version, "%s, rev. %d", 646 (esc->card_type == EF_CARD_TP) ? "3C507-TP" : "3C507", 647 esc->card_rev); 648 649 if (esc->card_type == EF_CARD_TP) 650 i82586_attach(sc, version, ethaddr, eftp_media, NEFTP_MEDIA, 651 eftp_media[0]); 652 else { 653 u_int8_t media = bus_space_read_1(esc->sc_regt, esc->sc_regh, 654 EF_MEDIA); 655 media = (media & EF_MEDIA_MASK) >> EF_MEDIA_SHIFT; 656 657 i82586_attach(sc, version, ethaddr, ef_media, NEF_MEDIA, 658 ef_media[media]); 659 } 660 661 /* Clear the interrupt latch just in case. */ 662 bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1); 663 664 esc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 665 IPL_NET, i82586_intr, sc); 666 if (esc->sc_ih == NULL) { 667 DPRINTF(("\n%s: can't establish interrupt\n", 668 sc->sc_dev.dv_xname)); 669 } 670 } 671 672 static int 673 ef_port_check(iot, ioh) 674 bus_space_tag_t iot; 675 bus_space_handle_t ioh; 676 { 677 int i; 678 u_char ch; 679 u_char* signature = EF_SIGNATURE; 680 681 for (i = 0; i < strlen(signature); i++) { 682 ch = bus_space_read_1(iot, ioh, i); 683 if (ch != signature[i]) 684 return 0; 685 } 686 687 /* If card is mapped in high memory (above 15Meg), we can't use it */ 688 ch = bus_space_read_1(iot, ioh, EF_MADDR); 689 if (ch & EF_MADDR_HIGH) 690 return 0; /* XXX: maybe we should panic?? */ 691 692 return 1; 693 } 694 695 struct cfattach ef_ca = { 696 sizeof(struct ef_softc), ef_match, ef_attach 697 }; 698 699
Indexes created Mon Oct 13 15:10:03 GMT 2025